73189565 has 16 divisors (see below), whose sum is σ = 91888128. Its totient is φ = 55858176.

The previous prime is 73189561. The next prime is 73189583. The reversal of 73189565 is 56598137.

It is a cyclic number.

It is not a de Polignac number, because 73189565 - 2² = 73189561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73189561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65804 + ... + 66906.

It is an arithmetic number, because the mean of its divisors is an integer number (5743008).

Almost surely, 2^73189565 is an apocalyptic number.

It is an amenable number.

73189565 is a deficient number, since it is larger than the sum of its proper divisors (18698563).

73189565 is a wasteful number, since it uses less digits than its factorization.

73189565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its digits is 226800, while the sum is 44.

The square root of 73189565 is about 8555.0900053711. The cubic root of 73189565 is about 418.2953678803.

The spelling of 73189565 in words is "seventy-three million, one hundred eighty-nine thousand, five hundred sixty-five".